<!DOCTYPE html>
 <html>
 <head>
     <meta  charset="UTF-8">
     <title>用户登录</title>
 </head>
 <body>
     <h1>登录</h1>
     <form  method="post">
         user:<input type="text"  name="user" >
         <br>
         password:<input  type="password" name="pwd" >
         <br>
         <input  type="submit" name="登录">
         <br>
         结果：{{msg}}

     </form>
 </body>
 </html>